Hitch or clevis structure



Jan. 3, 1928.

H. E. ALTGELT HITCH GR CLEVIS STRUCTURE.

Filed Deo. 29. 1924 atto:

Patented Jan. 3, 1928.

` lUNITED HERMAN n. ALTGELT, oF'soU'rII BEND, INDIANA,AssIGNoIt To OLIVER CHILLED rnowwonxs, or sourir BEND, INDIANA.

g A 1,655,351 P.a'lsilvvT I oFF1cE.j-

BITCH 0R CLEVIS STRUCTURE.

1 Appnation mea December as, 1924. serial No. 758,694.

, rlhis invention relates to improvements in hitch or clevis structures yfor, tractor-'drawn lplows,-,one object` of the inventionl being to provide such a structure in which line vertical adjustmentscan be effected.V

A further object is to so construct lhitch or clevis devices that they may be made substantially rigid when the plow onwhich they are used is working inhard ground and thus t aid in causing penetration of tlieplow base or bases, and so that the said hitch devices may be rendered flexible when the plowjis workingin uneven ground and across ditches and high places` so that the plow will be permitted to make urrows of even depth while the tractor hitch or point of attachment of the clevisk or hitch devices with thetractor, moves up andY down. v 5 Y A further, object is4 to i rovide a hitch or clevis'structure whichs all `-embody simplicity of construction and eiiici'ency ofv operation. y Y 1 ,Y

With these` and other objects in view, the invention consists in certain novel features of construction and combinationsot': parts as hereinafter set 'forth and' pointed out in the claims. t

In the accompanying drawings,-

Figure 1 is a plan Aview of a hitch or clevis structure" embodying my improvements.

Figure 2 is a side elevation, and

Figure 3 is a detail view. In the drawings I have represented a portion ot a plow tramey at 1 and to this, two parallel clevis plates v2 are connected by means of va pin 3 which is preferably a wooden break pin but which may, if desired, be

replaced by a metal pin or bolt The clevis plates 2 receive the frame member 1 between them and each of said plates is provided at one end with a plurality of notches 4, 5, 6, for the accommodation of a bolt 7 which passes through the frame member 1 and thus the clevis plates 2 may be adjusted vertically with relation to the frame member 1.v

If desired a securing bolt 8 may be passed through the clevis plates and a suitable spacing sleeve located on said bolt. n

The clevis plates 2 are diagonally disposed and between their lower forward end portions, a. linkQ enters. This link 9 prefer` ably comprisestwo members secured .tofgether by a rivet 10 located, intermedlate their ends and the: forward ends ofthe vlmk members are spread-apart whereby a bifurcated portion 11l is provided atthe forward end vofthe link. A pin-12 passes through the lower forward portions of the clevis l" plates 2 and through an intermediate'v por,- tion of the llink 9, thus kpivotally connecting the'latter with the` clevis plates. .The rear portion of the link9k is Aprovided with a plurality of holes 13 (three such holesfbeing shown in lthe drawings) andthe clevis plates are provided withfelongated slots 14throu h which andk any one of the holes ,13, a pm 15-passcsj j y A clevis 16 is pivotally connected withy the bifurcated4 forward end portion of the link 9 and this clevis is formed with jaws 17 to vreceive a part on a tractor, being retained infengagement with such part by kmeans of apin ,1S passing through said jaws. j By means ofthe adjustable connectionfof therear portion of the link 9 with the forward-portion l,of the clevis plates 2, a finer vertical adjustment on the tractor canfbe justable yconnection between the clevisk plates and the plow framewere solely depended When the pin 15 connecting theiclevis Vplates 2 and link 9 yis employed, asshown` in the drawings, the said link and plates will be held together substantially rigid and this of course reduces the ilexibility of the hitch obtained than would be possible if the ad- This may be accomplished by removing the y pin 15 and permitting the link to hinge or swing on the bolt 12.

Various slight changes might be madein the detailsot construction of'my invention without rdeparting from the spirit of the latter or limiting itsk scope and hence Ido not restrict myself to the precise details herein set forth.

` IIa-vingfullydescribed myvinventionwhat t I claim asnewand desire tosecureby LettersfPatent, is i: n

l. A clevis structure comprising clevis plates, meansv icor connecting' said plates to a plow frame in downwardly and forwardly projecting relation thereto, a link pivotally supported between its ends by said @levis plates, means for adjustably connecting one end of said link with the clevis plates rearwardly of the pivotal mounting ofsaid link and in advance ot the plow traine, and a clevis pivotally connected with the torwart end ot the link forwardly ot the pivotal connection of said link with the clevis plates and adapted tor attachment to a tractor.

Q. A clevis structure comprising` a clevis plate, means pivotally and adjiistably connecting said plate with a member tohe drawn, a link pivotally connected between its ends to the lower front end of said clevis plate, means for holding said link in any one ot'a plurality ot vertical adjustments, and means pivotally connected with the torward end of the link forwardly ot the pivotal connection ot the latter with the clevis connecting the striietiii'e to a ra member to be drawn, a link pivoted hef tween its ends to said clevis plate, said link. rhaving a vertical series ot holes adjacent its rear end, a pin passing through the clevis plate and any one of said holes, said pin he- `ing removable whereby the link may be permitted to swing` freelyon its pivotal connection with the clevis plate, and means pivotallyfconnected with the forward portion ot the link forwardly of the pivotal connection of the latter with the clevis plates tor connecting said link with a tractor.

4. A clevis structure comprising parallel clevis plates, means for connecting said plates to a member to he drawn, said plates each liavingka horizontal elongated slot, a link entering between said plates and pivotally connected intermediate its ends therewith, said link having near its rear end a vertical series of holes, a pin to pass through the elongated slots of the clevis platesand through any one-ot the holes in the link, and a clevis pivotally coniiectedwith the forward end portion ot said link forwardly oi the pivotal connection of t-lie latter with the clevis plates and adapted for attachment to a tractor.

5. A clevis structure comprising a pair of clevis plates, means for attaching said plates to a traine element with their front ends extending downward and forwardly beyond said element, means at the rear ends ot the plates for adjusting the saine in `vertical planes, the plates being each provided near its front extremity with an elongated horizontal opening, a straight link pivoted hetween the front ends of the plates and extending forwardly and4 rearwardly from its pivot and provided at its rear-end with a vertical series of openings, a fastening pin inserted through the elongated openings in the clevis and any one of theY openings in the link, and a draft clevis pivoted at its rear end to the front end of the link.

VIn testimony whereof, I have signed this specification.

` HERMAN E. ALTGELT. 

